Plane attachment.



J. 0. LANGFORD.

PLANE ATTACHMENT. APPLICATION FILED APR. 26. 1911.

1 ,270 744. Patented June 25, 1918.

INVENTOR Joseph along/3rd WITNEESES 624A 'AMKDWW.

ATTORNEY UNITED STATES PATENT oEEicE.

grosnrii o. tweeter, o ELrAso, TEXAS, AssIenoR E ONE-HALE 'ro HENRY MOHR,

OF EL rAso, TEXAS.

, To all .whom it may-concern Be it known that I, JOSEPH LANGFORD, a citizen of the United States, residing at El :Paso, in the county of El Paso and State of .Texasghave invented certain new and useful the planing .I mprovements in Plane Attachments, of which; the following is a specification.

This invention relatesto planing tools and more particularly to an attac ment 10 therefor, in thenature ofa guard or fender.

The'principal object of the invention is to produce a guard for a plane-stock, whereby the hand of the operator is protected; from injury by splinters, etc.,.du'r'ing the use of tool. i

A further object of the invention is to produce a guard of this character which will prevent splinters and the like from strikin i the front ends of the side plates, and whic 1 [20. maybe readily attached to or detached .therefrom whenever desired and with no difficulty whatsoever.

With these and other objects in view, my invention consists in the details of construction, arrangement and combination of parts,

as will be hereinafter more fully described in the following specification and pointed out in the accompanying drawings, wherein:

Figure 1 is a top plan view of a plane,

8 with my attachment thereon,

Fig. 2 is a longitudinal sectional view of the attachment and the end of the plane to which it is secured,

a Fig. 3 is a side View of the attachment 5 shown detached from the plane, and

Fig. 4 is a detail bottom plan view of the same.

Referring now more particularly to the several views of the drawings, it will be noted that my attachment is shown, in sevof permitting the j 1 of the plane to extend therethrough for eneral instances, applied to a planing tool known in the art as a block or jack plane, although it is to be understood that the invention can be used equally well with any other type of plane.

In this, particular instance, 1 indicates the fiat lower surface of the plane stock provided with a cross brace 2 at one end and a handle 3 at the opposite end. This 0 surface is further provided with a transextendin slot 4 arranged in proximlirace 2 and for the pur ose plane bit or cutting b ade versely ity to the cross PLANE ATTACHMENT.

Specification of Letters Patent; P t t d June 25, 191 Application filed April 26,1917. Serial No. 164,679.

. gagement with the. surface to be planed. A suitable inclined support or rest 5 is arranged adjacent the slot 4 and is of the type usually employed for supporting the plane blit inits various adjustments through the s 0t 4:. i

Formed at the forward end of the plane stock and midway between the side walls 6 and 7 thereof, is a raised boss 8 having a threadedbore therein adapted to receive the threadedshank 9 of a knob 10. This knob constitutes a gripping means for the operator to permithim to control the movement of the plane while being used. When using the plane, the operator of course, propels it over the surface of the board, etc., by means of the handle 3, but it is well-known in the art that serious injuries have been occasioned by reason of the fact that large splinters have been forced into the hand which grasps the knob piece 10 during the movement of the plane, besides interfering with the proper manipulation of the planing tool. It is the object of my invention to overcome this objectionable feature and to provide a guard for the operators hand, so that the splinters will be deflected from engagement therewith.

In carrying out my invention I provide a shielding plate or guard 11 havin an enlarged end 12 and a restricted end 13, the latter being provided with an opening 14: adapted to receive the raised portion 8 of the plane stock after the knob 10 has been unscrewed therefrom and the guard member attached to the plane in the manner illustrated to advantage in Fig. 2 of the drawings. The upper surface of the guard is inclined and projects forwardly beyond the rounded front edge 16 to provide an overhanging flange 17. The marginal edge of the restricted portion 13 is beveled as indi cated at 18, said edge terminatin abruptly on both side of the plate to provide parallel straight edges 19 for closely engaging the inner faces of the sides 6 and 7 respectively of the plane stock. Shoulders 20 are formed forward of the edges 19 for engagement with the front ends of the side walls 6 and 7 and are undercut as seen in Fig. 3 so as to conform to the curvature of said ends, thus permitting the guard member to be firmly seated in place when attached to the plane. The knob 10 when its shank 9 is screwed into the raised boss 8 will abut against the upper surface of the guard 11 and will securely retain the latter in position.

When using a pl'aningtool c with ny attachment thereon,

splinters which might normally tend to. wound the hand of the operator graspingph knob, 10,will be deflected therefrom by. reason'of ,the forwardly extending and over guard. It'will be 'see'n that such hanging a v splinters must necessarily engage the front edge 16 of the' 'attachment and be turned aside by reason ofithe 'overhangingflange prevented from striking:

1 7,; consequentlythe front ends of'the side walls or qgiroject-v in the direction ofthe knob,-.about which the be constructed of any suitable material ade- V 7 Having thus described quate'ior the purpose-injview, and may of course be so constructed as' tobe readily j attachable to any typeof plane in use.- 5 It" i i's of inost simple construction applied; to or removed from the plane with-'7 and can be out the necessity of changing j the plane in any-material particular. 1 a 1 y invention what Copies of this patent I may be obtained for it is evident "that any" said cavity;

hand is gripped; This attachment rnay it an overhanging flafnge the -whole 'fo'r use r s 1bstaI ti-allyas described; i f In testimony whereotI-afiixinygsignalture tersPatent 1s The herein describcdfattachrnent :ior a V planewhose stock coni'pri's'es ac'fiatflbottbm plate and V upstanding side 7 Walls, the same consisting of a boss, rising fromsaid bottom plate an knob having transversely in presence of two witnesses.

five. cents each, by addressingthe Goinniissioner. oflatents, washington nc." a '1 c 1 v V; e V

d havingfa threaded cavity, and a j a threaded shank: for engaging; combined with a" guard; plate, having :a restricted reanend with an open-I- i'ng passing over said boss, straight'parallel" side edges engagingthe innerfa'ces of-saidfi side walls, undercutshoulders forward 0f a said edges resting upon the upper edges/of the walls at thef'rOnt-endS-Of the 'latte'rj a V i rounded front'endfiush;with the front end ofthebottorn plateQand'abQve 

